#include<stdio.h>
#include<conio.h>
#include<windows.h>
int main(){int a,b,c,max,t;
do{    
       do{
               clrscr();
    printf("nhap vao 3 so a,b,c:");
    scanf("%d%d%d",&a,&b,&c);
    max=a>b?(a>c?a:c) : (b>c?b:c);
    printf("so lon nhat la %d \n",max);

    printf("co muon tiep tuc kiem tra khong(1=Y or 2=N):");
    scanf("%d",&t);}
    while(t==1);
    printf("you choose %d\n",t);}
    while(t==2);
    printf("Goodbye!!!");
    sleep(1000);}
